I also said, that even if there WERE people that leaned conservatively in the sciences, they no longer do so as much since their own careers are being dismissed by conservatives as government waste.
I had someone give a clearer explanation as to what I was trying to get at . . . engineers specifically tend to be fairly concrete in their thinking and world views, because they deal with absolutes - i.e. the elevator can only hold so many people, and beyond that the ropes will be too stressed. This lends them to conservative or even libertarian political ideologies, since those are also based more on absolutes (compared to the fuzzy gray areas that liberals are so fond of.)
These people can also be idiot savants. My ex brother in law was a goddamn idiot, and had a reading disability, but something about solid state logic clicked in his brain, and he was thus a very good computer engineer despite have an otherwise average IQ (roundabouts 100ish.)
But actual research scientists, as Joph's study pointed out, lean liberal as a whole.